mild steel hollow pipe 1) Standard:API 5L,ASTM 36.10M,A106,A53,DIN 1629,1626,BS,JIS.etc mild steel hollow pipe1) Standard:API 5L,ASTM 36.10M,A106,A53,DIN 1629,1626,BS,JIS.etc2) Material: ASTM A106/A53,ST37,35, API 5L GR. B /X42/X52.etc3) Size: OD 1/8”to 48” (10.3mm-1219.2mm)4) Wall Thickness : 2mm to 60 mm5) Schedule: SCH5-160, STD, XS, XXS etc.6) Technique:Hot Rolled,Cold Drawn,Seamless,ERW,LSAW ...